Fresh design details perfect the look of this iconic bag, now crafted with grainy calfskin leather for a more structured silhouette. The satchel retains its plethora of convenient pockets and optional, adjustable strap, while updated hardware further polishes the style. Style Name: Proenza Schouler Medium Ps1+ Grainy Leather Satchel. Style Number: 5263954 1. Available in stores.